1. Assistant Professor, Dept. of Civil and Environmental Engineering, California State Univ., 800 N. State College Blvd., Fullerton, CA 92831 (corresponding author).
2. Undergraduate Research Assistant, Environmental Engineering, Tarleton State Univ., 1333 W. Washington St., Stephenville, TX 76402.
3. Visiting Assistant Professor of Chemical Engineering, Rose-Hulman Institute of Technology, 5500 Wabash Ave., Terre Haute, IN 47803.
4. Mechanical Engineer, Curt G Joa, Inc., Sheboygan Falls, WI 53085.